| 摘要 |
PURPOSE:To provide the structure of an air duct excellent in a weather proof and fire resisting properties by using as a concrete plate a concrete plate reinforced by carbon fibers. CONSTITUTION:When constructing an air duct structure 1, both terminal ends 6a and 6b of a CFRC formed plate 6 are faces with eaves 2 and the end surface of a wall body 4 by interposing a packing 11 therebetween, and a fitting bolt 10 secured to a bolt hole 9 provided beforehand is clamped. Then, a mortar 13 is filled into a bolt hole 12. Further, upon connecting CFRC formed plates 6 to each other, engaged cut-away portions thereof are overlapped upon each other, and an epoxy resin and the like are filled therebetween. By these procedures, the air duct structure 1 is formed into an airtight and heat insulating state, and it can be used as an air duct for air conditioning as it is. |
